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D( x )
x^2-(6*x)+8 = 0
x^2-(5*x)+6 = 0
x^2-(6*x)+8 = 0
x^2-(6*x)+8 = 0
x^2-6*x+8 = 0
x^2-6*x+8 = 0
DELTA = (-6)^2-(1*4*8)
DELTA = 4
DELTA > 0
x = (4^(1/2)+6)/(1*2) or x = (6-4^(1/2))/(1*2)
x = 4 or x = 2
x^2-(5*x)+6 = 0
x^2-(5*x)+6 = 0
x^2-5*x+6 = 0
x^2-5*x+6 = 0
DELTA = (-5)^2-(1*4*6)
DELTA = 1
DELTA > 0
x = (1^(1/2)+5)/(1*2) or x = (5-1^(1/2))/(1*2)
x = 3 or x = 2
x in (-oo:2) U (2:3) U (3:4) U (4:+oo)
(3*x)/(x^2-(5*x)+6)-(24/(x^2-(6*x)+8)) = 0
(3*x)/(x^2-5*x+6)-24*(x^2-6*x+8)^-1 = 0
(3*x)/(x^2-5*x+6)-24/(x^2-6*x+8) = 0
x^2-5*x+6 = 0
x^2-5*x+6 = 0
x^2-5*x+6 = 0
DELTA = (-5)^2-(1*4*6)
DELTA = 1
DELTA > 0
x = (1^(1/2)+5)/(1*2) or x = (5-1^(1/2))/(1*2)
x = 3 or x = 2
(x-2)*(x-3) = 0
x^2-6*x+8 = 0
x^2-6*x+8 = 0
x^2-6*x+8 = 0
DELTA = (-6)^2-(1*4*8)
DELTA = 4
DELTA > 0
x = (4^(1/2)+6)/(1*2) or x = (6-4^(1/2))/(1*2)
x = 4 or x = 2
(x-2)*(x-4) = 0
(3*x)/((x-2)*(x-3))-24/((x-2)*(x-4)) = 0
(3*x)/((x-2)*(x-3))+(-24*(x-3))/((x-2)*(x-3)) = 0
3*x-24*(x-3) = 0
72-21*x = 0
(72-21*x)/((x-2)*(x-3)) = 0
(72-21*x)/((x-2)*(x-3)) = 0 // * (x-2)*(x-3)
72-21*x = 0
72-21*x = 0 // - 72
-21*x = -72 // : -21
x = -72/(-21)
x = 24/7
x = 24/7
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